| (19) |
 |
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(11) |
EP 0 271 838 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
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13.12.1989 Bulletin 1989/50 |
| (43) |
Date of publication A2: |
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22.06.1988 Bulletin 1988/25 |
| (22) |
Date of filing: 11.12.1987 |
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| (84) |
Designated Contracting States: |
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DE FR GB |
| (30) |
Priority: |
13.12.1986 JP 296991/86
26.06.1987 JP 159015/87
|
| (60) |
Divisional application: |
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93107659.0 / 0561426 |
| (71) |
Applicant: KYOWA HAKKO KOGYO CO., LTD. |
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Chiyoda-ku,
Tokyo 100 (JP) |
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| (72) |
Inventors: |
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- Katsumata, Ryoichi
Machida-shi
Tokyo (JP)
- Kikuchi, Yasuhiro
Salt Lake City
Utah 84102 (US)
- Nakanishi, Keiko
Machida-shi
Tokyo (JP)
|
| (74) |
Representative: VOSSIUS & PARTNER |
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Postfach 86 07 67
81634 München
81634 München (DE) |
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| |
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Remarks: |
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The applicant has filed a statement in accordance with Rule 28 (4) EPC (issue of a
sample only to an expert). Accession number(s) of the deposit(s): FRI - FERM BP 1176,
1178, 1179. |
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| (54) |
Novel microorganisms capable of assimilating lactose |
(57) Described are coryneform microorganisms capable of assimilating lactose which carry
a recombinant DNA capable of conferring the ability to assimilate lactose on coryneform
microorganisms, and a process for producing L-amino acids which comprises culturing
said coryneform microorganism capable of assimilating lactose in a culture medium
containing lactose to form an amino acid, and recovering said amino acid accumulated
in the culture broth. Further, the invention relates to a method for preparing recombinant
plasmids containing a DNA fragment essential to the expression of a gene in coryneform
microorganisms.